On Sun, 23 Jan 2005 10:09:32 -0600, "Pam" wrote:

No waterfall. Water goes out of the veggie filter through a pipe back into
the pond.

As long as the veggie filter does not overflow everything is fine, but
once it starts overflowing I guess the water follows the path of least
resistance.

I suspect Stephen may be right about the obstruction. I don't see
the pump output changing drastically. When it rains could the rain
beat down foliage in the veggie filter that would block or partially
block the return pipe?

Regards,

Hal